A one-to-one binary relationship in an E-R diagram can be converted into either one or two tables in a relational database.

Question

Quizplus · Accepted Answer

A one-to-one binary relationship can be represented by a single table, where the primary key of one entity is also the foreign key in the other entity's table. Alternatively, it can be represented by two separate tables, with the primary keys of each entity in their respective tables serving as the foreign key in the other table.

A One-To-One Binary Relationship in an E-R Diagram Can Be